Robert Edgar Willoughby Pitt, arriving on ship too late to get a first class stateroom from London to New York, travels with immigrants on the lower deck. Noticing Molly Creedon on the upper deck, Robert must flirt long distance as regulations forbid their meeting. Later, in his New York club, Robert wagers he can rob a house without being arrested. That night, after Robert subdues professional burglar Spike Mullins who is attempting to rob him, Robert proposes that they join forces. Spike suggests the home of Molly's father, Deputy Police Commissioner "Big Phil" Creedon. After Molly apprehends them, Creedon, known to accept graft, meets Robert the next day and receives hush money but warns Robert to keep away from Molly. When Spike, now Robert's valet, steals a pearl necklace at a house party, Robert threatens Creedon with exposure and secures their release. Molly discreetly returns the pearls and marries Robert. Creedon, accepting this, vows not to take bribes anymore.